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   <title>Define Source Drawing Modification Time - DEPRECATED</title>
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<b><i><font face="Arial">Define Source Drawing Modification Time - DEPRECATED</font></i></b>
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<p><font face="Arial Black"><font size=-1>Purpose</font></font>
<ul>The <b>Define Source Drawing Modification Time</b> function provides
information to WHIP! data reading applications about when the source file of the
WHIP! data was last modified.</ul>
<font face="Arial Black"><font size=-1>Syntax</font></font>
<br>&nbsp;
<center><table BORDER CELLPADDING=9 WIDTH="55%" BORDERCOLOR="#000000" >
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<td VALIGN=TOP WIDTH="18%" HEIGHT="26" BGCOLOR="#000080"><font face="Arial"><font color="#FFFFFF"><font size=-2>Opcode
format</font></font></font></td>

<td VALIGN=TOP WIDTH="22%" HEIGHT="26" BGCOLOR="#000080"><font face="Arial"><font color="#FFFFFF"><font size=-2>Opcode</font></font></font></td>

<td VALIGN=TOP WIDTH="27%" HEIGHT="26" BGCOLOR="#000080"><font face="Arial"><font color="#FFFFFF"><font size=-2>Operand
Format</font></font></font></td>

<td VALIGN=TOP WIDTH="33%" HEIGHT="26" BGCOLOR="#000080"><font face="Arial"><font color="#FFFFFF"><font size=-2>Comments</font></font></font></td>
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<td VALIGN=TOP WIDTH="18%"><font face="Arial"><font size=-2>Extended ASCII</font></font></td>

<td VALIGN=TOP WIDTH="22%"><font face="Courier New"><font size=-2>(SourceModified</font></font></td>

<td VALIGN=TOP WIDTH="27%"><b><font face="Courier New"><font size=-2>&lt;ws>&lt;I<sub>Time</sub>>&lt;ws>&lt;T<sub>Desc</sub>>&lt;ws>&lt;T<sub>GUID</sub>>)</font></font></b></td>

<td VALIGN=TOP WIDTH="33%"><font face="Arial"><font size=-2>Defines when
file was last changed</font></font></td>
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</table></center>

<ul><i>Time</i>&nbsp;&nbsp; The number of seconds elapsed since midnight
(00:00:00), January 1, 1970, coordinated universal time (GMT)
<p><i>Desc</i>&nbsp;&nbsp; Any humanly readable description of the time
when the source file to the WHIP! data was last modified
<p><i>GUID</i>&nbsp;&nbsp; A globally unique identifier (GUID) represented
by an alpha-numeric description generated to capture the modification time
of the source file</ul>
<font face="Arial Black"><font size=-1>Details</font></font>
<ul>Some WHIP! data reading applications may need to "know" when the source file
that was used to generate the WHIP! data was last changed. The WHIP! data 
generating application can satisfy this with the SourceModified opcode:
<ul><font face="Courier New"><font size=-1>(Created 820497600 'January
1, 1996' C0176e42-dc10-11d0-bb09)</font></font></ul>
</ul>
<font face="Arial Black"><font size=-1>Notes</font></font>
<ul>WHIP! data reading applications should not expect to be able to parse the
<i>Desc</i>
argument, though it could be shown to a user.
<p>WHIP! data should contain at most one occurrence of the source
modification time opcode, which by convention should be nested inside a
<b><a href="DefDwgInfoBlk.html">Define
Drawing Information Block</a></b> opcode.</ul>
<font face="Arial Black"><font color="#000000"><font size=-1>Default</font></font></font>
<ul><font color="#000000">By default no source drawing modification time
is defined, which is equivalent to</font>
<ul><font face="Courier New"><font color="#000000"><font size=-1>(SourceModified
0 unknown unknown)</font></font></font></ul>
</ul>
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